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-rw-r--r--xlators/performance/nl-cache/src/nl-cache-messages.h29
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diff --git a/xlators/performance/nl-cache/src/nl-cache-messages.h b/xlators/performance/nl-cache/src/nl-cache-messages.h
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+/*
+ * Copyright (c) 2016 Red Hat, Inc. <http://www.redhat.com>
+ * This file is part of GlusterFS.
+ *
+ * This file is licensed to you under your choice of the GNU Lesser
+ * General Public License, version 3 or any later version (LGPLv3 or
+ * later), or the GNU General Public License, version 2 (GPLv2), in all
+ * cases as published by the Free Software Foundation.
+ */
+
+#ifndef __NL_CACHE_MESSAGES_H__
+#define __NL_CACHE_MESSAGES_H__
+
+#include <glusterfs/glfs-message-id.h>
+
+/* To add new message IDs, append new identifiers at the end of the list.
+ *
+ * Never remove a message ID. If it's not used anymore, you can rename it or
+ * leave it as it is, but not delete it. This is to prevent reutilization of
+ * IDs by other messages.
+ *
+ * The component name must match one of the entries defined in
+ * glfs-message-id.h.
+ */
+
+GLFS_MSGID(NLC, NLC_MSG_NO_MEMORY, NLC_MSG_EINVAL, NLC_MSG_NO_TIMER_WHEEL,
+ NLC_MSG_DICT_FAILURE);
+
+#endif /* __NL_CACHE_MESSAGES_H__ */